we welcome our viewers who are watching us around the country on wgn america and on the web. our top story comes just a day after b-p agreed to pay billions in fines for the 2010 deep horizon explosion on the gulf. this morning's blast happened about 25 miles off the coast of grand isle, louisiana. the coast guard says four people have been airlifted to hospitals .... and at least two others are missing. the rig is owned by black elk energy ... and a new orleans t- v station reports about 28 people were on board at the time of the explosion. the coast guard says unlike the deepwater horizon blast in 2010 ... the black elk rig wasn't actively producing oil. so far there are no reports of oil leaking into the water. the fire has been put out. former c-i-a director david petraeus faces lawmakers on capitol hill for the first time today since his stunning resignation. he testified about the deadly attack on a u-s consulate in benghazi, libya in september. he was the director of the spy agency at the time. u-s ambassador chris stevens and three other americans were killed in the a